Comment by phil21

Mom and Pop stores are basically the only places left that reliably give you a cash discount for not using a card. Sometimes advertised at checkout, sometimes you need to ask.

Especially service companies. They tend to quote out "cash" (aka check/bank transfer) price and then add another 5% or so if you want to pay via card. There of course is very often an even cheaper "actual cash" price too you need to ask for if you are so inclined.